1. No category

Workshop
„SECA Compliance“
1
Technology – schematic view
Dry Scrubber
• No water
• No wash water
• No caustic soda
• No pumps
• No tanks
VDR/MARIKO Workshop „SECA Compliance“
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Technology
 Desulphurization is based on absorptive processes
 Lime based materials are in use
 Dry processes utilizing limestone or calcium hydroxide are established
on the market
RESULT
Chemisorption
Ca(OH)2 + SO2
CaSO3 + H2O
Ca(OH)2 + SO2 + ½ O2
CaSO4 + H2O
Ca(OH)2 + SO3 + H2O
CaSO3 + H2O
Calcium sulfate (CaSO4)
=
VDR/MARIKO Workshop „SECA Compliance“
GYPSUM
33
Classifier with heating unit
Top part silo with heating unit
Raw gas hood
Cascade unit
Clean gas hood
Discharge hopper with heating unit
VDR/MARIKO Workshop „SECA Compliance“
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System Integration
Container - Vessel
Length o.a.
Breadth moulded
Deadweight
106 m
19 m
7750 t
3.900 kW
SOx
≈ 60.000 Am³/h
≈ 40 kg/h
VDR/MARIKO Workshop „SECA Compliance“
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System Integration
RoRo - Vessel
Length o.a.
Breadth moulded
Deadweight
195 m
27 m
14000 t
10.800 kW
SOx
≈ 115.000 Am³/h
≈ 100 kg/h
VDR/MARIKO Workshop „SECA Compliance“
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System Integration
RoPax - Vessel
Length o.a.
Breadth moulded
Deadweight
185 m
28 m
6300 t
4 x 6.900 kW
SOx
≈ 300.000 Am³/h
≈ 270 kg/h
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System Integration
Engine Power [MW]
4
10
25
E-consumption [kW/h]
20
Compressed air [Nm³/h]
1,5
Light weight [t]
18
36
88
Full weight [t]
67
127
400
VDR/MARIKO Workshop „SECA Compliance“
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2
50
3
88
References
DryEGCS for a mass flow of a 24
MW engine @ 3 % sulphur HFO
(180.000 kg/h)
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References
VDR/MARIKO Workshop „SECA Compliance“
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References
Length
210 m
Breadth
29,6 m
Draught
8,6 m
Capacity
19300 t
Main engines
2 x 8400 kW
Aux engines
2 x 1780 kW
VDR/MARIKO Workshop „SECA Compliance“
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References
VDR/MARIKO Workshop „SECA Compliance“
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References
Technology onboard the MV Timbus and MV Cellus
DryEGCS®
Installation on
MV Timbus
MAK 3,6 MW
at
December, 2014
VDR/MARIKO Workshop „SECA Compliance“
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References
Technology onboard the MV Timbus and MV Cellus
VDR/MARIKO Workshop „SECA Compliance“
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References
Technology onboard the MV Timbus and MV Cellus
First 2 Vessels worldwide equipped
with both DeSOx and DeNOx systems
Container - Vessel
Length o.a.
Breadth moulded
Deadweight
99,91 m
17 m
6389 t
3.840 kW
SOx
≈ 60.000 Am³/h
≈ 40 kg/h
VDR/MARIKO Workshop „SECA Compliance“
1515
Discharge of used granulate by silo truck
VDR/MARIKO Workshop „SECA Compliance“
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Logistics – Production and Supply Northern Europe
Kolari
Verdal
Lime Production / Supply
Raahe
Örnsköldsvik
Logistic - Center
Helsinki
St. Petersburg
Stockholm
Landskrona
Storugns
Lübeck
Wülfrath
Kurevere
Riga – Logistic - Center
Siauliai
Slawno
Szczecin
Berlin
Miedzianka
Rübeland
Saal
Harburg
VDR/MARIKO Workshop „SECA Compliance“
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Logistics
Manufacturer in Europe
Granulate
FELS-Werke GmbH
Nordkalk
Lhoist
Balthazard & Cotte
Carmeuse
VDR/MARIKO Workshop „SECA Compliance“
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Logistics
United States (Graymont, Lhoist, Carmeuse)
Granulate
British Columbia
Exshaw, Alberta
Coleman, Alberta
Faulkner, Manitoba
Joliette, Quebec
Langley
Topley
Blind River, Ontario
VDR/MARIKO Workshop „SECA Compliance“
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Logistics – Lime plants in Canada
Graymont
Lhoist
Carmeuse
British Columbia
Exshaw, Alberta
Coleman, Alberta
Faulkner, Manitoba
Joliette, Quebec
Langley
Topley
Blind River, Ontario
VDR/MARIKO Workshop „SECA Compliance“
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Different options for the supply and disposal
Silo with a capacity of at least 50 tons; Silo accessable by trucks
Special Bulk Containers
Pneumatic discharge in ports with Silo Truck Discharge System
Specialcontainer for the supply of fresh granulate and the discharge of used
granulate (insists pneumatic transport system and a compressor for
compressed air
Transportation of Granulate by Train with Container
Transport of Granulate with Container by Truck with a tipping chassi
VDR/MARIKO Workshop „SECA Compliance“
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Logistic – Granulate
Lime plant
production of
Ca(OH)2
Manufacturing of
Granulate
Transport to logistic
center nearby harbour
High temperature
deluphurization in
power plants
Soil remidiation
Land fill
VDR/MARIKO Workshop „SECA Compliance“
Transport to logistic
center nearby harbour
Charging of
Specialcontainer
Residue transport from
vessel
Desulphurization
onboard
Retarding agent for
cement
Slag reduction in steel
plant
Transport onboard
22
NOx – Regulations: IMO – Marpol Annex VI
Specific NOx emissions (g/kWh)
18
Tier I (present)
Ships built 2000 onwards
Engines > 130 kW
16
14
10
Retrofit: Ships built
1990 – 2000
Engines > 90 litres/cylinder
and > 5000 kW
8
Tier II (global 2011)
6
Ships built 2011 onwards
Engines > 130 kW
Dry/Wet Methods
12
Selective Catalytic Reduction
4
Tier III (ECAs 2016)
2
0
0
200
400
600
800 1000 1200 1400 1600 1800 2000
Ships in designated
areas, 2016 onwards
Engines > 600 kW
Rated engine speed (rpm)
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DeNOx - State of the art of SCR System
VDR/MARIKO Workshop „SECA Compliance“
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Limiting Factors for SCR Systems
Limiting Factors




Clogging of pitch
Reduced activity
Frequent soot blowing
Frequent maintenance
VDR/MARIKO Workshop „SECA Compliance“
pressure loss increase
NOx emission increase
mechanical stress
costs and mechanical stress
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Limiting Factors for SCR Systems
Limiting Factors











Operating Conditions for a SCR System
Fuel with < 1,5 %, ideally < 0,1 %
If low sulphur fuel not available => DESOx upfront (i.e. DryEGCS)
Sufficient exhaust temperature = 300° C – 410° C
Exhaust gas temperature after DryEGCS can be as low as 200°C
Even distribution of gas flow across the ceramic elements
Even distribution of urea across the gas flow
Complete hydrolysis and thermolysis of urea
Reliable ∆P measurement of SCR unit
Functional soot blowing device
Ideally combined with DryEGCS desulphurization
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Advantages
Environmental
 Exploitable residues
 Emissions comply with IMO
 No transmission of
pollutants from the
atmosphere into the
hydrosphere but total
removal from the
biosphere
VDR/MARIKO Workshop „SECA Compliance“
Technical
 Robust system and longterm proven system
 No corossion of
downstream installed
exhaust gas components
 Installation of a small sized
SCR without reheating
 Combined particle
precepitation
 low energy consumption
Financial
 Return on Investment
within 18 Month (ECA)
 Lower operational
expenses (still use the
cheap HFO)
 Higher charter rates
possible
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For more information please visit
our homepage www.envairtec.com
Tel.: +49 (0)40 526 000 900
info@envairtec.com
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